Abstract Arsenic and trace metal (Cd, Cu, Pb and Zn) concentrations in the liver, kidneys, and muscles of two fish species (Chrysichthys nigrodigitatus and Sarotherodon melanotheron) collected from three rivers (Bandama, Comoe, and Bia) in Cote d'Ivoire were examined from July to November 2016. A total of 102 fishes were sampled and measured by atomic absorption spectroscopy. The concentrations in the Chrysichthys nigrodigitatus muscles ranged from 20.9 to 427, 0.00 to 243, 20.1 to 243, 35.6 to 359, and 409.1 to 2003 µg/kg wet weight for As, Cd, Pb, Cu, and Zn, respectively. As for Sarotherodon melanotheron tissue, the concentrations varied between 4.13 and 357, 0.00 and 14.9, 53.8 and 313, 27.7 and 241, and between 153.1 and 2540 µg/kg wet weight for As, Cd, Pb, Cu, and Zn, respectively. The bioaccumulation factor showed low values, indicating a low accumulation of the metals in these fish species. The data were below the international guidelines, and the estimated dietary intake data revealed that consumption of Chrysichthys nigrodigitatus and Sarotherodon melanotheron tissues may pose no human risks. However, the population frequently consuming fish of about 68.5 g/day from the Bandama, Comoe and Bia Rivers may be exposed chronically to arsenic pollution, based on the non-carcinogenic risks index with a target hazard quotient higher than 1.

中文翻译：

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从科特迪瓦三条河流采集的两种商业鱼类中砷和痕量金属的评估和生物积累以及健康风险

摘要 从 Cote d' 的三条河流（Bandama、Comoe 和 Bia）收集的两种鱼类（Chrysichthys nigrodigitatus 和 Sarotherodon melanotheron）肝脏、肾脏和肌肉中的砷和痕量金属（Cd、Cu、Pb 和 Zn）浓度2016 年 7 月至 11 月对科特迪瓦进行了检查。共采集了 102 条鱼，并通过原子吸收光谱法进行了测量。在 Chrysichthys nigrodigitatus 肌肉中，As、Cd、Pb、Cu 和 Zn 的浓度范围分别为 20.9 至 427、0.00 至 243、20.1 至 243、35.6 至 359 和 409.1 至 2003 µg/kg 湿重。至于 Sarotherodon melanotheron 组织，As、Cd、Pb、Cu 和 Zn 的浓度分别在 4.13 和 357、0.00 和 14.9、53.8 和 313、27.7 和 241 以及 153.1 和 2540 µg/kg 湿重之间变化。生物蓄积因子显示低值，表明这些鱼类中金属的积累量很低。数据低于国际准则，估计的膳食摄入量数据显示，食用 Chrysichthys nigrodigitatus 和 Sarotherodon melanotheron 组织可能不会对人类造成风险。然而，根据目标危害商数高于 1 的非致癌风险指数，经常食用约 68.5 克/天来自班达马河、科莫河和比亚河的鱼的人群可能会长期暴露于砷污染。